Patient characteristics at onset of restricted-diffusion lesion
| Cases | Controls | |
|---|---|---|
| Total patients | 20 | 60 |
| Age (median) (range)(yr) | 51 (20–82) | 54 (21–82) |
| Sex (male/female) | 12:8 | 36:24 |
| Diagnosis | ||
| Glioblastoma | 14 (70%) | 51 (85%) |
| Anaplastic astrocytoma | 4 (20%) | 5 (8%) |
| Anaplastic oligodendroglioma | 2 (10%) | 1 (2%) |
| Anaplastic mixed glioma | 0 (0%) | 3 (5%) |
| Histologic grade | ||
| III | 6 | 9 |
| IV | 14 | 51 |
| Initial KPS (mean) (range) | 87 (70–100) | 82 (60–100) |
| Extent of resection | ||
| 0%–10% | 6 (30%) | 13 (21%) |
| 11%–89% | 8 (40%) | 22 (37%) |
| 90%–100% | 6 (30%) | 25 (42%) |
| Recurrence status at time of lesion onset | ||
| New | 4 (20%) | 16 (27%) |
| First | 9 (45%) | 30 (50%) |
| Second | 3 (15%) | 11 (18%) |
| Third | 4 (20%) | 3 (5%) |